X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details PROTEIN WAS CRYSTALLIZED FROM 4% PEG 8000, 50 MM NACL, 10 MM TRIS-CL (PH 7.5), 7.5 MM KPO4 (PH 5.9),0.1 MM EDTA, 1.5 MM DITHIOTHREITOL

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 58.08 α = 90
b = 75.77 β = 109.94
c = 60.92 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 1995-10
Diffraction Radiation
Monochromator Protocol
DOUBLE CRYSTAL SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE ELLIOTT GX-13 -- -- --

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot
1.8 30 99.8 0.051 0.051 -- 7.5 -- 45971 -- 1.0 --
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
1.8 1.86 99.5 0.133 0.133 12.0 6.5 --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
MAD, SIRAS 1.8 30.0 -- 1.0 -- 45059 4541 98.7 -- 0.194 0.194 0.247 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 1.8 1.88 -- 523 4909 0.265 0.312 0.014 96.2
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Anisotropic B[1][1] 3.89
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 2.15
Anisotropic B[2][2] 3.67
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] 2.32
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.19
x_bond_d 0.011
x_mcbond_it 1.54
x_angle_deg 1.79
x_dihedral_angle_d 22.0
x_scbond_it 3.02
x_mcangle_it 2.23
x_scangle_it 4.36
Coordinate Error
Parameter Value
Luzzati Resolution Cutoff (Low) 30.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 4406
Nucleic Acid Atoms 0
Heterogen Atoms 12
Solvent Atoms 334

Software

Software
Software Name Purpose
MLPHARE phasing
X-PLOR refinement version: 3.851
DENZO data reduction
SCALEPACK data scaling